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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Windsurf
A
Luma Dream Machine
A
Replicate
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Smooth, cinematic motion. Image-to-video specialist.Run any open-source AI model with an API call.
Categorycodingvideodev platform
PricingFree + $15/mo ProFree + $10-$500/moPay per second of compute
Best forDevelopers who want Cursor-like power for less money.Photographers animating stills, cinematic b-roll.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Smaller community
  • Model selection more limited
  • Prompt fidelity below Runway
  • Queue times on free tier
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.S-tier for open-source model APIs. The default in this space.
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